Advanced Forex EA
Prompt
Create a comprehensive and professional MQL5 Expert Advisor (EA) script for MetaTrader 5 that implements an advanced Forex trading bot integrating multiple technical indicators, adaptive risk management, and time-based trading restrictions as specified below. --- ### Core Requirements: - Market sensing using: EMA (Exponential Moving Average), RSI (Relative Strength Index), MACD (Moving Average Convergence Divergence), Stochastic Oscillator, and volume analysis. - Adaptive trade execution with automated buy and sell order placement based on combined indicator signals. - Dynamic lot sizing calculated as 1% of the current account balance. - Trading restricted strictly within customizable New York session hours (`START_HOUR` to `END_HOUR`). - Detection and avoidance of trading during scheduled news events affecting the symbol using SymbolInfo() or MQL5 news APIs. - Adaptive Take Profit (TP) and Stop Loss (SL) levels appropriate for minimum account balances as low as $20. - Automatic reversal handling by detecting market reversals through divergences and indicator signals, closing existing positions on reversal, then opening reversed trades accordingly. --- ### Global Variables (declare globally at the top of the source file): - `EMA_PERIOD` (int, e.g., 20) - `RSI_PERIOD` (int, e.g., 14) - `OVERBOUGHT_THRESHOLD` (float, e.g., 70) - `OVERSOLD_THRESHOLD` (float, e.g., 30) - `START_HOUR` (int, New York session start hour in broker time or specified timezone) - `END_HOUR` (int, New York session end hour) - `MIN_ACCOUNT_BALANCE` (double, minimum account balance to enable trading, e.g., 20.0) --- ### EA Lifecycle Functions Requirements: 1. **OnInit()** - Validate all input parameters for acceptable ranges. - Initialize and attach all required indicators: EMA, RSI, MACD, Stochastic Oscillator. - Calculate initial adaptive lot size as 1% of current account balance. 2. **OnDeinit()** - Properly detach and release all indicator resources. - Free any allocated memory/resources to prevent leaks. 3. **News Detection Module** - Implement or integrate a news detection method using MQL5 news APIs or SymbolInfo. - Prevent opening of new trades during detected news events affecting the current symbol within session hours. 4. **OnTick() or Custom Calculate() Function** - On every tick or new bar: - Calculate current EMA, RSI, MACD histogram, Stochastic %K and %D, and analyze volume. - Confirm current time is within `START_HOUR` and `END_HOUR`. - Confirm no active news event. - Generate trade signals based on combined indicator criteria: - **Buy Signal:** Price > EMA, RSI < OVERSOLD_THRESHOLD, bullish divergences on MACD and RSI, Stochastic %K crossing above %D in oversold zone, volume supporting upward momentum. - **Sell Signal:** Price < EMA, RSI > OVERBOUGHT_THRESHOLD, bearish divergences on MACD and RSI, Stochastic %K crossing below %D in overbought zone, volume supporting downward momentum. - Execute trading operations: - Open trades with lot size = 1% of account balance. - Set SL and TP dynamically, compatible with minimum balances. - Modify or close existing orders as necessary. - Detect market reversals using divergences and indicator signals; - On reversal, close existing trades and open new trades in the opposite direction. 5. **Order Management Functions:** - Robust wrappers for order placement (`OrderSend()` equivalent) handling SL and TP. - Safe order closing functions handling errors properly. --- ### Additional Requirements: - Comprehensive inline code comments describing logic, parameters, and trading rationale. - Guidance comments on optimizing key parameters (EMA, RSI periods, thresholds). - Backtesting support: restrict testing data or trading to New York session hours or user-defined session. - Support demo account operation for validation. - Robust error handling and parameter validation throughout. - Full compliance with MQL5 coding standards and best practices. --- # Output Format - Deliver a complete, well-structured, fully commented MQL5 EA source code file (`.mq5`). - Modular code organization: initialization, indicator calculations, signal generation, order execution, news detection, reversal handling, cleanup. - Document all global variables and input parameters at the top of the file clearly. --- # Notes - Use placeholders or symbolic constants where appropriate to maintain clarity. - Ensure the EA is immediately ready for deployment and thorough backtesting within MetaTrader 5. --- Ensure the output is a single `.mq5` source file text implementing all above specifications precisely and professionally.
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